# NTSB Accident WPR11LA290
> **CHRISTEN INDUSTRIES INC PITTS S-1T** · 2011-06-26 · Alkali Lake, OR, USA · MINR
## Event
- **NTSB number:** WPR11LA290
- **Event ID:** 20110627X45350
- **Type:** Accident
- **Date:** 2011-06-26
- **Location:** Alkali Lake, OR, USA
- **Coordinates:** 43.166389, -119.484169
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** CHRISTEN INDUSTRIES INC
- **Model:** PITTS S-1T
- **Registration:** N77MN
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The loss of engine oil during cruise flight due to the failure of the front bearing oil seal.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR11LA290) · AI Analytics · CC0 1.0*